446 THE SNAKES OF SOUTH AFRICA. 
4. BOODON. 
Dum. & Bibr. Mém. Ac. Sc. xxiii., 1853, p. 460; Bouleng. Cat. 
Sie 327. 
Four Species in South Africa. 
I. Scales in 23 or 25 rows; three labials entering the eye. 
Two postoculars; preocular not extending to upper 
surface of head ; ventrals 175-196 .. B. infernalis. 
Three postoculars ; preocular extending to upper “surface 
of head; ventrals 196-210 .. 56 .. B. guttatus. 
Il. Scales in 27 to 33 rows; ventrals 192— 237. 
Two (rarely three) labials entering the eye; two pairs of 
chin-shields in contact with each other ae B. lineatus. 
Three labials entering the eye; only one Ba of chin- 
shields meeting on the median line .. : B. mentalis. 
I. BooDON INFERNALIS, Giinth. Cat. Col. Sn. p. 199 ; Boule t.C., Pp. 339, 
pl. xxi. fig. 1. 
East and South Africa. 
Cape Colony: Cape Town (Southey, Oakley) ; Cape Division (Layard, 
Southey, Oakley, Sclater) ; Robben Island (Denysson, Péringuey) ; 
Knysna (Groom); Port St. Johns (Shortridge) ; Kimberley 
(French) ; King William’s Town (Godfrey). 
2. BOODON GUTTATUS. 
Lycodon guttatus, Smith, Ill., Rept. pl. xxii. 
Boodon guttatus, Bouleng., t.c., p. 331. 
Cape Colony. 
Cape Town (Layard); O’okiep (Howard); Burghersdorp (Kanne- 
meyer). 
3. Boopon LInEATus, Dum. & Bibr. Erp. Gén. vii. p. 363; Bouleng., t.c., 
332 
Tropical and South Africa. 
Cape Colony: Cape Division (no history); Burghersdorp (Kanne- 
meyer) ; Port St. John’s (Shortridge) ; Knysna (Groom) ; Touw’s 
River, Worcester Division (Le Feévre, Purcell) ; Beaconsfield 
(Paynter) ; Robertson (Melle) ; Hanover (Schreiner) ; Beaufort 
West (Haagner) ; Ograbis, Little Namaqualand (Strauss). 
Natali: Durban (Bowker, Sanderson). 
Transvaal: Modderfontein (Haagner) ; Potchefstroom (Gilchrist). 
Rhodesia: Mazoe (Darling) ; Salisbury (Darling, Marshall, Thomas) ; 
Livingstone (Sykes). 
Portuguese East Afica: Delagoa Bay (De Coster). 
4. Boopon MENTALIS, Giinth. Ann. & Mag. N. H. (6) i., 1888, p. 331, pl. xx. 
fig. A; Bouleng., é.c.. p. 335. 
Damaraland. 
5. LYCOPHIDIUM. 
Dum. & Bibr. Mém. Ac. Sc. xxili., 1853, p. 462; Bouleng. Cat. 
Sn. i. p. 336. 
Two Species in South Africa. 
Ventrals 164-208 .. am # st We .. L..capense. 
Ventrals 146-156 .. we 7. ics ae .. L. semiannulis. 
